Rewarder part for location estimate work

[macpie]

One we have merged previous branch and ran it for sometimes we can test this and apply it.

[macpie]

Setup duration is: 104.323439708s
location_cache duration is: 3.866375ms
get_valid_estimates (called: 25000) avg duration is: Some(558.217µs)
is_within_radius  (called: 25000) avg duration is: Some(12.502µs)
Time elapsed in mobile_verifier::rewarder::get_untrusted_radious() is: 14.301506542s
Result size is 5820

Setup duration is: 464.112885792s
location_cache duration is: 17.711167ms
get_valid_estimates (called: 100000) avg duration is: Some(699.345µs)
is_within_radius  (called: 100000) avg duration is: Some(13.868µs)
Time elapsed in mobile_verifier::rewarder::get_untrusted_radious() is: 71.494374667s
Result size is 22790

Setup duration is: 1275.139504167s
location_cache duration is: 46.212125ms
get_valid_estimates (called: 300000) avg duration is: Some(583.322µs)
is_within_radius  (called: 300000) avg duration is: Some(13.066µs)
Time elapsed in mobile_verifier::rewarder::get_untrusted_radious() is: 179.34971425s
Result size is 69188